Obesity is a disease where people accumulate more and more fat. When they reach a certain point, their fat stops working and they develop disease, such as type 2 diabetes. But not all fat is bad.

We know that even a grain of dust or tiny droplet can damage a tough metal surface if the particle gathers up a high-enough speed when it smashes into it.

A former NASA astronaut says the agency he used to work for has a duty to protect civilians from killer asteroids, but that it isn't meeting that obligation.

Laser labs sense gravitational waves from a black hole collision at least five billion light-years away.

The first Russian rocket to fly with people since a harrowing failure two months ago blasted off Monday morning in a successful return to flight.

Last month, new research from Harvard and Yale led to a flurry of news claiming scientists were proposing to 'dim the Sun' in an "ingenious but as-yet-unproven way to tackle climate change".

We humans are very curious about the nuclear furnace that powers life on Earth. We've looked at the Sun in so many different ways, both Earth-based and space-based. Yet we've had a really hard time getting a glimpse of its poles.

While we have yet to figure out how to travel by warp drive, we have found other ways for spacecraft to propel themselves at mind-boggling speeds across vast distances of outer space.

It's official. At 2:23 am in southern China, a rocket carrying unique payload successfully launched from the Xichang Satellite Launch Center.

Hard science traveler

As someone who has clocked an unseemly amount of hours on an MMO, I'm no stranger to the guilt that can come from habitual gaming. 

Wasps are dangerous little insects. They're aggressive as heck, and being stung can be on a spectrum from incredibly painful to fatal.

About 11 billion miles from Earth, a NASA probe has broken another record for humanity.

Earth is not the home you think it is. Far below the scant surface spaces we inhabit, the planet is teeming with an incredibly vast and deep 'dark biosphere' of subterranean lifeforms that scientists are only just beginning to comprehend.

You probably don't stop to think about this often, but right after the birth of the Universe, matter was not in the form we recognise today.

The Geminids meteor shower peaks on the mornings of December 13 and 14, 2018 – but if you look up any time there's a clear night sky up until December 17, you might just catch a glimpse of a Geminid meteor.

Scientists in Germany say they have hit a new superconductivity milestone. According to their paper, they achieved resistance-free electrical current at the highest temperature yet: just 250 Kelvin, or -23 degrees Celsius (-9.4 degrees Fahrenheit).

NASA's Parker Solar Probe, the first human-made object to fly into the Sun's corona, completed its first solar flyby on November 11, collecting a wealth of unprecedented data about the workings of our magnificent home star. And now, weeks later, th